3200d04d75
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22440 a1c6a512-1295-4272-9138-f99709370657
882 lines
33 KiB
C
882 lines
33 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2007 Mauricio Peccorini
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#include "plugin.h"
|
|
#include "chessbox_pgn.h"
|
|
|
|
#define PGN_FILE PLUGIN_GAMES_DIR "/chessbox.pgn"
|
|
#define LOG_FILE PLUGIN_GAMES_DIR "/chessbox.log"
|
|
int loghandler;
|
|
|
|
short kn_offs[8][2] = {{2,1},{2,-1},{-2,1},{-2,-1},{1,2},{1,-2},{-1,2},{-1,-2}};
|
|
short rk_offs[4][2] = {{1,0},{-1,0},{0,1},{0,-1}};
|
|
short bp_offs[4][2] = {{1,1},{-1,1},{1,-1},{-1,-1}};
|
|
|
|
/* global vars for pl_malloc() */
|
|
void *bufptr = NULL;
|
|
ssize_t bufleft;
|
|
|
|
/* simple function to "allocate" memory in pluginbuffer.
|
|
* (borrowed from dict.c)
|
|
*/
|
|
void *pl_malloc(ssize_t size)
|
|
{
|
|
void *ptr;
|
|
ptr = bufptr;
|
|
|
|
if (bufleft < size)
|
|
{
|
|
return NULL;
|
|
}
|
|
else
|
|
{
|
|
bufptr += size;
|
|
bufleft -= size;
|
|
return ptr;
|
|
}
|
|
}
|
|
|
|
/* init function for pl_malloc() */
|
|
void pl_malloc_init(void)
|
|
{
|
|
bufptr = rb->plugin_get_buffer((size_t *)&bufleft);
|
|
}
|
|
|
|
void process_tag(struct pgn_game_node* game, char* buffer){
|
|
char tag_type[20];
|
|
char tag_value[255];
|
|
short pos=0, pos2=0;
|
|
while (buffer[pos+1] != ' '){
|
|
tag_type[pos] = buffer[pos+1];
|
|
pos++;
|
|
}
|
|
tag_type[pos] = '\0';
|
|
pos+=3;
|
|
while (buffer[pos] != '"'){
|
|
tag_value[pos2] = buffer[pos];
|
|
pos++; pos2++;
|
|
}
|
|
|
|
/* truncate tag values that are too large */
|
|
if (pos2 > 19){
|
|
pos2 = 19;
|
|
}
|
|
tag_value[pos2] = '\0';
|
|
|
|
if (rb->strcmp(tag_type,"White") == 0){
|
|
rb->strcpy(game->white_player, tag_value);
|
|
}
|
|
if (rb->strcmp(tag_type,"Black") == 0){
|
|
rb->strcpy(game->black_player, tag_value);
|
|
}
|
|
if (rb->strcmp(tag_type,"Result") == 0){
|
|
rb->strcpy(game->result, tag_value);
|
|
}
|
|
if (rb->strcmp(tag_type,"Date") == 0){
|
|
rb->strcpy(game->game_date, tag_value);
|
|
}
|
|
}
|
|
|
|
unsigned short get_next_token(const char* line_buffer, unsigned short initial_pos,
|
|
char* token_buffer){
|
|
unsigned short pos, token_pos=0;
|
|
for (pos = initial_pos;line_buffer[pos] == ' ' || line_buffer[pos] == '.';pos++);
|
|
do {
|
|
token_buffer[token_pos] = line_buffer[pos];
|
|
pos++; token_pos++;
|
|
} while (line_buffer[pos] != ' ' && line_buffer[pos] != '.'
|
|
&& line_buffer[pos] != '\0');
|
|
/* ignore annotations */
|
|
while (token_buffer[token_pos-1] == '!' || token_buffer[token_pos-1] == '?'){
|
|
token_pos--;
|
|
}
|
|
token_buffer[token_pos] = '\0';
|
|
return pos;
|
|
}
|
|
|
|
unsigned short piece_from_pgn(char pgn_piece){
|
|
switch (pgn_piece){
|
|
case 'R':
|
|
return rook;
|
|
case 'N':
|
|
return knight;
|
|
case 'B':
|
|
return bishop;
|
|
case 'Q':
|
|
return queen;
|
|
case 'K':
|
|
return king;
|
|
}
|
|
return no_piece;
|
|
}
|
|
|
|
char pgn_from_piece(unsigned short piece, unsigned short color){
|
|
char pgn_piece = ' ';
|
|
switch (piece){
|
|
case pawn:
|
|
pgn_piece = 'P';
|
|
break;
|
|
case rook:
|
|
pgn_piece = 'R';
|
|
break;
|
|
case knight:
|
|
pgn_piece = 'N';
|
|
break;
|
|
case bishop:
|
|
pgn_piece = 'B';
|
|
break;
|
|
case queen:
|
|
pgn_piece = 'Q';
|
|
break;
|
|
case king:
|
|
pgn_piece = 'K';
|
|
break;
|
|
case no_piece:
|
|
pgn_piece = ' ';
|
|
break;
|
|
}
|
|
if (color == black && pgn_piece != ' '){
|
|
pgn_piece += 32;
|
|
}
|
|
return pgn_piece;
|
|
}
|
|
|
|
void pgn_to_coords(struct pgn_ply_node* ply){
|
|
unsigned short str_length = rb->strlen(ply->pgn_text);
|
|
char str[10];
|
|
rb->strcpy(str,ply->pgn_text);
|
|
ply->column_from = 0xFF;
|
|
ply->row_from = 0xFF;
|
|
ply->column_to = 0xFF;
|
|
ply->row_to = 0xFF;
|
|
ply->taken_piece = no_piece;
|
|
ply->promotion_piece = no_piece;
|
|
ply->enpassant = false;
|
|
ply->castle = false;
|
|
ply->promotion = false;
|
|
unsigned short i, j, piece;
|
|
bool found = false;
|
|
|
|
if (str_length >= 3 && (str[0] == 'O' || str[0] == '0') && str[1] == '-'
|
|
&& (str[2] == 'O' || str[2] == '0')) {
|
|
/* castling */
|
|
ply->castle = true;
|
|
if (str_length >= 5 && str[3] == '-' && (str[4] == 'O' || str[4] == '0')){
|
|
/* castle queenside */
|
|
if (ply->player == white){
|
|
ply->row_from = 0; ply->column_from = 4;
|
|
ply->row_to = 0; ply->column_to = 2;
|
|
/* update the rook's position, the king's position will be updated later */
|
|
board[locn[0][3]] = rook; color[locn[0][3]] = white;
|
|
board[locn[0][0]] = no_piece; color[locn[0][0]] = neutral;
|
|
} else {
|
|
ply->row_from = 7; ply->column_from = 4;
|
|
ply->row_to = 7; ply->column_to = 2;
|
|
board[locn[7][3]] = rook; color[locn[7][3]] = black;
|
|
board[locn[7][0]] = no_piece; color[locn[7][0]] = neutral;
|
|
}
|
|
} else {
|
|
/* castle kingside */
|
|
if (ply->player == white){
|
|
ply->row_from = 0; ply->column_from = 4;
|
|
ply->row_to = 0; ply->column_to = 6;
|
|
board[locn[0][5]] = rook; color[locn[0][5]] = white;
|
|
board[locn[0][7]] = no_piece; color[locn[0][7]] = neutral;
|
|
} else {
|
|
ply->row_from = 7; ply->column_from = 4;
|
|
ply->row_to = 7; ply->column_to = 6;
|
|
board[locn[7][5]] = rook; color[locn[7][5]] = black;
|
|
board[locn[7][7]] = no_piece; color[locn[7][7]] = neutral;
|
|
}
|
|
}
|
|
} else if (str[0] >= 'a' && str[0] <= 'h'){
|
|
/* pawns */
|
|
ply->column_from = str[0] - 'a';
|
|
if (str[1] == 'x'){
|
|
ply->row_from = str[3] - '1' + ((ply->player==white)?-1:1);
|
|
ply->row_to = str[3] - '1';
|
|
ply->column_to = str[2] - 'a';
|
|
if (board[locn[ply->row_to][ply->column_to]] == no_piece){
|
|
/* en-passant, remove the pawn */
|
|
ply->enpassant = true;
|
|
board[locn[ply->row_from][ply->column_to]] = no_piece;
|
|
color[locn[ply->row_from][ply->column_to]] = neutral;
|
|
ply->taken_piece = pawn;
|
|
} else {
|
|
ply->taken_piece = board[locn[ply->row_to][ply->column_to]];
|
|
}
|
|
} else {
|
|
ply->column_to = ply->column_from;
|
|
ply->row_from = str[1] - '1' + ((ply->player==white)?-1:1);
|
|
ply->row_to = str[1] - '1';
|
|
}
|
|
if (board[locn[ply->row_from][ply->column_from]] == no_piece){
|
|
/* the pawn moved two squares */
|
|
ply->row_from += ((ply->player==white)?-1:1);
|
|
}
|
|
if (ply->row_to == 7 || ply->row_to == 0){
|
|
/* promotion */
|
|
if (str[2] == '='){
|
|
ply->promotion_piece = piece_from_pgn(str[3]);
|
|
} else {
|
|
ply->promotion_piece = piece_from_pgn(str[5]);
|
|
}
|
|
/* change the piece in the original position and wait
|
|
* for the code at the end to move it
|
|
*/
|
|
board[locn[ply->row_from][ply->column_from]] = ply->promotion_piece;
|
|
}
|
|
} else {
|
|
/* the other pieces */
|
|
piece = piece_from_pgn(str[0]);
|
|
if (str[2] == 'x'){
|
|
/* taken a piece and move was ambiguous */
|
|
ply->column_to = str[3] - 'a';
|
|
ply->row_to = str[4] - '1';
|
|
ply->taken_piece = board[locn[ply->row_to][ply->column_to]];
|
|
if (str[1] >= 'a' && str[1] <= 'h') {
|
|
ply->column_from = str[1] - 'a';
|
|
} else {
|
|
ply->row_from = str[1] - '1';
|
|
}
|
|
} else if (str[1] == 'x') {
|
|
/* taken a piece */
|
|
ply->column_to = str[2] - 'a';
|
|
ply->row_to = str[3] - '1';
|
|
ply->taken_piece = board[locn[ply->row_to][ply->column_to]];
|
|
} else if (str_length >= 4 && str[3] >= '0' && str[3] <= '9'){
|
|
/* no piece taken and move was ambiguous */
|
|
ply->column_to = str[2] - 'a';
|
|
ply->row_to = str[3] - '1';
|
|
if (str[1] >= 'a' && str[1] <= 'h') {
|
|
ply->column_from = str[1] - 'a';
|
|
} else {
|
|
ply->row_from = str[1] - '1';
|
|
}
|
|
} else {
|
|
/* regular move */
|
|
ply->column_to = str[1] - 'a';
|
|
ply->row_to = str[2] - '1';
|
|
}
|
|
if (piece == knight) {
|
|
for (i=0;i<8;i++){
|
|
if (ply->row_to + kn_offs[i][0] >= 0 && ply->row_to + kn_offs[i][0] <= 7
|
|
&& ply->column_to + kn_offs[i][1] >= 0 && ply->column_to + kn_offs[i][1] <= 7
|
|
&& board[locn[ply->row_to + kn_offs[i][0]][ply->column_to + kn_offs[i][1]]] == knight
|
|
&& color[locn[ply->row_to + kn_offs[i][0]][ply->column_to + kn_offs[i][1]]] == ply->player
|
|
&& (ply->row_from == 0xFF || ply->row_from == ply->row_to + kn_offs[i][0])
|
|
&& (ply->column_from == 0xFF || ply->column_from == ply->column_to + kn_offs[i][1])) {
|
|
ply->row_from = ply->row_to + kn_offs[i][0];
|
|
ply->column_from = ply->column_to + kn_offs[i][1];
|
|
}
|
|
}
|
|
}
|
|
if (piece == rook || piece == queen || piece == king){
|
|
for (i=0;i<4;i++){
|
|
j = 1;
|
|
found = false;
|
|
while (ply->row_to+(j*rk_offs[i][0]) >= 0 && ply->row_to+(j*rk_offs[i][0]) <= 7 &&
|
|
ply->column_to+(j*rk_offs[i][1]) >= 0 && ply->column_to+(j*rk_offs[i][1]) <= 7){
|
|
if (board[locn[ply->row_to+(j*rk_offs[i][0])][ply->column_to+(j*rk_offs[i][1])]] != no_piece) {
|
|
if (board[locn[ply->row_to+(j*rk_offs[i][0])][ply->column_to+(j*rk_offs[i][1])]] == piece &&
|
|
color[locn[ply->row_to+(j*rk_offs[i][0])][ply->column_to+(j*rk_offs[i][1])]] == ply->player &&
|
|
(ply->row_from == 0xFF || ply->row_from == ply->row_to+(j*rk_offs[i][0])) &&
|
|
(ply->column_from == 0xFF || ply->column_from == ply->column_to+(j*rk_offs[i][1]))) {
|
|
ply->row_from = ply->row_to+(j*rk_offs[i][0]);
|
|
ply->column_from = ply->column_to+(j*rk_offs[i][1]);
|
|
found = true;
|
|
}
|
|
break;
|
|
}
|
|
j++;
|
|
}
|
|
if (found) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (piece == bishop || ((piece == queen || piece == king) && !found)){
|
|
for (i=0;i<4;i++){
|
|
j = 1;
|
|
found = false;
|
|
while (ply->row_to+(j*bp_offs[i][0]) >= 0 && ply->row_to+(j*bp_offs[i][0]) <= 7 &&
|
|
ply->column_to+(j*bp_offs[i][1]) >= 0 && ply->column_to+(j*bp_offs[i][1]) <= 7){
|
|
if (board[locn[ply->row_to+(j*bp_offs[i][0])][ply->column_to+(j*bp_offs[i][1])]] != no_piece) {
|
|
if (board[locn[ply->row_to+(j*bp_offs[i][0])][ply->column_to+(j*bp_offs[i][1])]] == piece &&
|
|
color[locn[ply->row_to+(j*bp_offs[i][0])][ply->column_to+(j*bp_offs[i][1])]] == ply->player &&
|
|
(ply->row_from == 0xFF || ply->row_from == ply->row_to+(j*bp_offs[i][0])) &&
|
|
(ply->column_from == 0xFF || ply->column_from == ply->column_to+(j*bp_offs[i][1]))) {
|
|
ply->row_from = ply->row_to+(j*bp_offs[i][0]);
|
|
ply->column_from = ply->column_to+(j*bp_offs[i][1]);
|
|
found = true;
|
|
}
|
|
break;
|
|
}
|
|
j++;
|
|
}
|
|
if (found) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* leave a very complete log of the parsing of the game while it gets stable */
|
|
for (i=0;i<8;i++){
|
|
for (j=0;j<8;j++) {
|
|
rb->fdprintf(loghandler,"%c",pgn_from_piece(board[locn[7-i][j]],color[locn[7-i][j]]));
|
|
}
|
|
rb->fdprintf(loghandler,"\n");
|
|
}
|
|
|
|
/* update the board */
|
|
board[locn[ply->row_to][ply->column_to]] = board[locn[ply->row_from][ply->column_from]];
|
|
color[locn[ply->row_to][ply->column_to]] = color[locn[ply->row_from][ply->column_from]];
|
|
board[locn[ply->row_from][ply->column_from]] = no_piece;
|
|
color[locn[ply->row_from][ply->column_from]] = neutral;
|
|
}
|
|
|
|
void coords_to_pgn(struct pgn_ply_node* ply){
|
|
int pos = 0,i,j;
|
|
unsigned short moving_piece = board[locn[ply->row_from][ply->column_from]];
|
|
char unambiguous_position;
|
|
bool found = false;
|
|
char alg_move[5];
|
|
char move_buffer[10];
|
|
short move;
|
|
if (moving_piece == king){
|
|
/* check castling */
|
|
if (ply->column_from == 4 && ply->column_to == 6){
|
|
/* castling kingside */
|
|
rb->strcpy(ply->pgn_text,"O-O");
|
|
ply->castle = true;
|
|
} else if (ply->column_from == 4 && ply->column_to == 2){
|
|
/* castling queenside */
|
|
rb->strcpy(ply->pgn_text,"O-O-O");
|
|
} else {
|
|
if (board[locn[ply->row_to][ply->column_to]] != no_piece){
|
|
rb->snprintf(ply->pgn_text,10,"Kx%c%c",'a'+ply->column_to,
|
|
'1'+ply->row_to);
|
|
} else {
|
|
rb->snprintf(ply->pgn_text,10,"K%c%c",'a'+ply->column_to,
|
|
'1'+ply->row_to);
|
|
}
|
|
}
|
|
} else if (moving_piece == pawn){
|
|
if (ply->column_from != ply->column_to){
|
|
/* check enpassant */
|
|
if (board[locn[ply->row_to][ply->column_to]] == no_piece){
|
|
ply->enpassant = true;
|
|
}
|
|
/* check promotions when taking a piece */
|
|
if (ply->row_to == 0 || ply->row_to == 7) {
|
|
ply->promotion = true;
|
|
ply->promotion_piece = queen;
|
|
rb->snprintf(ply->pgn_text,10,"%cx%c%c=D", 'a'+ply->column_from,
|
|
'a'+ply->column_to,'1'+ply->row_to);
|
|
} else {
|
|
rb->snprintf(ply->pgn_text,10,"%cx%c%c", 'a'+ply->column_from,
|
|
'a'+ply->column_to,'1'+ply->row_to);
|
|
}
|
|
} else {
|
|
/* check promotions when not taking a piece */
|
|
if (ply->row_to == 0 || ply->row_to == 7) {
|
|
ply->promotion = true;
|
|
ply->promotion_piece = queen;
|
|
rb->snprintf(ply->pgn_text,10,"%c%c=D", 'a'+ply->column_to,
|
|
'1'+ply->row_to);
|
|
} else {
|
|
rb->snprintf(ply->pgn_text,10,"%c%c", 'a'+ply->column_to,
|
|
'1'+ply->row_to);
|
|
}
|
|
}
|
|
} else {
|
|
/* verify ambiguous moves for the different kinds of pieces */
|
|
unambiguous_position = '\0';
|
|
if (moving_piece == knight){
|
|
for (i=0;i<8;i++){
|
|
if (ply->row_to + kn_offs[i][0] >= 0 && ply->row_to + kn_offs[i][0] <= 7
|
|
&& ply->column_to + kn_offs[i][1] >= 0 && ply->column_to + kn_offs[i][1] <= 7
|
|
&& board[locn[ply->row_to + kn_offs[i][0]][ply->column_to + kn_offs[i][1]]] == knight
|
|
&& color[locn[ply->row_to + kn_offs[i][0]][ply->column_to + kn_offs[i][1]]] == ply->player
|
|
&& (ply->row_to + kn_offs[i][0] != ply->row_from
|
|
|| ply->column_to + kn_offs[i][1] != ply->column_from)){
|
|
if (ply->row_to + kn_offs[i][0] != ply->row_from){
|
|
unambiguous_position = '1' + ply->row_from;
|
|
} else {
|
|
unambiguous_position = 'a' + ply->column_from;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (moving_piece == rook || moving_piece == queen){
|
|
found = false;
|
|
for (i=0;i<4;i++){
|
|
j=1;
|
|
while (ply->row_to+(j*rk_offs[i][0]) >= 0 && ply->row_to+(j*rk_offs[i][0]) <= 7 &&
|
|
ply->column_to+(j*rk_offs[i][1]) >= 0 && ply->column_to+(j*rk_offs[i][1]) <= 7){
|
|
if (board[locn[ply->row_to+(j*rk_offs[i][0])][ply->column_to+(j*rk_offs[i][1])]] != no_piece) {
|
|
if (board[locn[ply->row_to+(j*rk_offs[i][0])][ply->column_to+(j*rk_offs[i][1])]] == moving_piece &&
|
|
color[locn[ply->row_to+(j*rk_offs[i][0])][ply->column_to+(j*rk_offs[i][1])]] == ply->player &&
|
|
(ply->row_to+(j*rk_offs[i][0]) != ply->row_from
|
|
|| ply->column_to+(j*rk_offs[i][1]) != ply->column_from)) {
|
|
if (ply->row_to+(j*rk_offs[i][0]) != ply->row_from){
|
|
unambiguous_position = '1' + ply->row_from;
|
|
} else {
|
|
unambiguous_position = 'a' + ply->column_from;
|
|
}
|
|
found = true;
|
|
}
|
|
break;
|
|
}
|
|
j++;
|
|
}
|
|
if (found) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (moving_piece == bishop || (moving_piece == queen && !found)){
|
|
for (i=0;i<4;i++){
|
|
j=1;
|
|
while (ply->row_to+(j*bp_offs[i][0]) >= 0 && ply->row_to+(j*bp_offs[i][0]) <= 7 &&
|
|
ply->column_to+(j*bp_offs[i][1]) >= 0 && ply->column_to+(j*bp_offs[i][1]) <= 7){
|
|
if (board[locn[ply->row_to+(j*bp_offs[i][0])][ply->column_to+(j*bp_offs[i][1])]] != no_piece) {
|
|
if (board[locn[ply->row_to+(j*bp_offs[i][0])][ply->column_to+(j*bp_offs[i][1])]] == moving_piece &&
|
|
color[locn[ply->row_to+(j*bp_offs[i][0])][ply->column_to+(j*bp_offs[i][1])]] == ply->player &&
|
|
(ply->row_to+(j*bp_offs[i][0]) != ply->row_from
|
|
|| ply->column_to+(j*bp_offs[i][1]) != ply->column_from)) {
|
|
if (ply->row_to+(j*bp_offs[i][0]) != ply->row_from){
|
|
unambiguous_position = '1' + ply->row_from;
|
|
} else {
|
|
unambiguous_position = 'a' + ply->column_from;
|
|
}
|
|
found = true;
|
|
}
|
|
break;
|
|
}
|
|
j++;
|
|
}
|
|
if (found) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
/* generate the first portion of the PGN text
|
|
* always as white so all uppercase, black/white considerations
|
|
* will be useful for FEN notation but not in this case
|
|
*/
|
|
if (unambiguous_position == '\0'){
|
|
if (board[locn[ply->row_to][ply->column_to]] != no_piece){
|
|
rb->snprintf(ply->pgn_text,10,"%cx%c%c",
|
|
pgn_from_piece(moving_piece,white) ,
|
|
'a'+ply->column_to, '1'+ply->row_to);
|
|
} else {
|
|
rb->snprintf(ply->pgn_text,10,"%c%c%c",
|
|
pgn_from_piece(moving_piece,white) ,
|
|
'a'+ply->column_to, '1'+ply->row_to);
|
|
}
|
|
} else {
|
|
if (board[locn[ply->row_to][ply->column_to]] != no_piece){
|
|
rb->snprintf(ply->pgn_text,10,"%c%cx%c%c",
|
|
pgn_from_piece(moving_piece,white) ,
|
|
unambiguous_position, 'a'+ply->column_to,
|
|
'1'+ply->row_to);
|
|
} else {
|
|
rb->snprintf(ply->pgn_text,10,"%c%c%c%c",
|
|
pgn_from_piece(moving_piece,white) ,
|
|
unambiguous_position, 'a'+ply->column_to,
|
|
'1'+ply->row_to);
|
|
}
|
|
}
|
|
}
|
|
/* update the board */
|
|
rb->snprintf(alg_move,5,"%c%c%c%c",'a' + ply->column_from, '1' + ply->row_from,
|
|
'a' + ply->column_to, '1' + ply->row_to);
|
|
/* The function returns false if the move is invalid, but since we're
|
|
* replaying the game, that should not be posible
|
|
*/
|
|
VerifyMove (ply->player, alg_move , 0 , &move, move_buffer );
|
|
|
|
/* add check/mate indicators */
|
|
for (pos=0;ply->pgn_text[pos] != '\0';pos++);
|
|
if (ply->checkmate) {
|
|
ply->pgn_text[pos] = '#'; pos++;
|
|
ply->pgn_text[pos] = '\0'; pos++;
|
|
} else if (move_buffer[4] == '+'){
|
|
ply->pgn_text[pos] = '+'; pos++;
|
|
ply->pgn_text[pos] = '\0'; pos++;
|
|
}
|
|
}
|
|
|
|
static const char* get_game_text(int selected_item, void *data,
|
|
char *buffer, size_t buffer_len){
|
|
int i;
|
|
struct pgn_game_node *temp_node = (struct pgn_game_node *)data;
|
|
|
|
for (i=0;i<selected_item && temp_node != NULL;i++){
|
|
temp_node = temp_node->next_node;
|
|
}
|
|
if (temp_node == NULL){
|
|
return NULL;
|
|
}
|
|
rb->snprintf(buffer, buffer_len,"%s vs. %s (%s)", temp_node->white_player,
|
|
temp_node->black_player, temp_node->game_date);
|
|
|
|
return buffer;
|
|
}
|
|
|
|
void write_pgn_token(int fhandler, char *buffer, size_t *line_length){
|
|
if (*line_length + rb->strlen(buffer) + 1 > 80){
|
|
rb->fdprintf(fhandler,"\n");
|
|
*line_length = 0;
|
|
}
|
|
rb->fdprintf(fhandler,"%s ",buffer);
|
|
*line_length += (rb->strlen(buffer) + 1);
|
|
}
|
|
|
|
/* ---- api functions ---- */
|
|
struct pgn_game_node* pgn_list_games(const char* filename){
|
|
int fhandler;
|
|
char line_buffer[128];
|
|
struct pgn_game_node size_node, *first_game = NULL;
|
|
struct pgn_game_node *curr_node = NULL, *temp_node;
|
|
unsigned short game_count = 1;
|
|
int line_count = 0;
|
|
bool header_start = true, game_start = false;
|
|
|
|
if ( (fhandler = rb->open(filename, O_RDONLY)) == 0 ) return NULL;
|
|
|
|
if (bufptr == NULL){
|
|
pl_malloc_init();
|
|
}
|
|
while (rb->read_line(fhandler, line_buffer, sizeof line_buffer) > 0){
|
|
line_count++;
|
|
/* looking for a game header */
|
|
if (header_start) {
|
|
/* a new game header is found */
|
|
if (line_buffer[0] == '['){
|
|
temp_node = (struct pgn_game_node *)pl_malloc(sizeof size_node);
|
|
temp_node->next_node = NULL;
|
|
if (curr_node == NULL) {
|
|
first_game = curr_node = temp_node;
|
|
} else {
|
|
curr_node->next_node = temp_node;
|
|
curr_node = temp_node;
|
|
}
|
|
process_tag(curr_node, line_buffer);
|
|
curr_node->game_number = game_count;
|
|
curr_node->pgn_line = 0;
|
|
game_count++;
|
|
header_start = false;
|
|
game_start = true;
|
|
}
|
|
} else {
|
|
if (line_buffer[0] == '['){
|
|
process_tag(curr_node, line_buffer);
|
|
} else if (line_buffer[0] == '\r'
|
|
|| line_buffer[0] == '\n'
|
|
|| line_buffer[0] == '\0'){
|
|
if (game_start) {
|
|
game_start = false;
|
|
} else {
|
|
header_start = true;
|
|
}
|
|
} else {
|
|
if (curr_node->pgn_line == 0) {
|
|
curr_node->pgn_line = line_count;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
rb->close(fhandler);
|
|
return first_game;
|
|
}
|
|
|
|
struct pgn_game_node* pgn_show_game_list(struct pgn_game_node* first_game){
|
|
int curr_selection = 0;
|
|
int button;
|
|
struct gui_synclist games_list;
|
|
int i;
|
|
struct pgn_game_node *temp_node = first_game;
|
|
|
|
for (i=0;temp_node != NULL;i++){
|
|
temp_node = temp_node->next_node;
|
|
}
|
|
|
|
|
|
rb->gui_synclist_init(&games_list, &get_game_text, first_game, false, 1, NULL);
|
|
rb->gui_synclist_set_title(&games_list, "Games", NOICON);
|
|
rb->gui_synclist_set_icon_callback(&games_list, NULL);
|
|
rb->gui_synclist_set_nb_items(&games_list, i);
|
|
rb->gui_synclist_limit_scroll(&games_list, true);
|
|
rb->gui_synclist_select_item(&games_list, 0);
|
|
|
|
while (true) {
|
|
rb->gui_synclist_draw(&games_list);
|
|
curr_selection = rb->gui_synclist_get_sel_pos(&games_list);
|
|
button = rb->get_action(CONTEXT_LIST,TIMEOUT_BLOCK);
|
|
if (rb->gui_synclist_do_button(&games_list,&button,LIST_WRAP_OFF)){
|
|
continue;
|
|
}
|
|
switch (button) {
|
|
case ACTION_STD_OK:
|
|
temp_node = first_game;
|
|
for (i=0;i<curr_selection && temp_node != NULL;i++){
|
|
temp_node = temp_node->next_node;
|
|
}
|
|
return temp_node;
|
|
break;
|
|
case ACTION_STD_CANCEL:
|
|
return NULL;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void pgn_parse_game(const char* filename,
|
|
struct pgn_game_node* selected_game){
|
|
struct pgn_ply_node size_ply, *first_ply = NULL;
|
|
struct pgn_ply_node *temp_ply = NULL, *curr_node = NULL;
|
|
int fhandler, i;
|
|
char line_buffer[128];
|
|
char token_buffer[10];
|
|
unsigned short pos;
|
|
unsigned short curr_player = white;
|
|
|
|
fhandler = rb->open(filename, O_RDONLY);
|
|
|
|
/* seek the line where the pgn of the selected game starts */
|
|
for (i=1;i<selected_game->pgn_line;i++){
|
|
rb->read_line(fhandler, line_buffer, sizeof line_buffer);
|
|
}
|
|
|
|
loghandler = rb->open(LOG_FILE, O_WRONLY | O_CREAT);
|
|
|
|
GNUChess_Initialize();
|
|
|
|
while (rb->read_line(fhandler, line_buffer, sizeof line_buffer) > 0){
|
|
if (line_buffer[0] == '\r' || line_buffer[0] == '\n' || line_buffer[0] == '\0'){
|
|
break;
|
|
}
|
|
pos = 0;
|
|
while (pos < rb->strlen(line_buffer)){
|
|
pos = get_next_token(line_buffer, pos, token_buffer);
|
|
if ((token_buffer[0] >= 'A' && token_buffer[0] <= 'Z')
|
|
|| (token_buffer[0] >= 'a' && token_buffer[0] <= 'z')
|
|
|| (token_buffer[0] == '0' && token_buffer[2] != '1')){
|
|
temp_ply = (struct pgn_ply_node *)pl_malloc(sizeof size_ply);
|
|
temp_ply->player = curr_player;
|
|
curr_player = (curr_player==white)?black:white;
|
|
rb->strcpy(temp_ply->pgn_text, token_buffer);
|
|
pgn_to_coords(temp_ply);
|
|
temp_ply->prev_node = NULL;
|
|
temp_ply->next_node = NULL;
|
|
if (first_ply == NULL) {
|
|
first_ply = curr_node = temp_ply;
|
|
} else {
|
|
curr_node->next_node = temp_ply;
|
|
temp_ply->prev_node = curr_node;
|
|
curr_node = temp_ply;
|
|
}
|
|
rb->fdprintf(loghandler,
|
|
"player: %u; pgn: %s; from: %u,%u; to: %u,%u; taken: %u.\n",
|
|
temp_ply->player, temp_ply->pgn_text, temp_ply->row_from,
|
|
temp_ply->column_from, temp_ply->row_to,
|
|
temp_ply->column_to, temp_ply->taken_piece);
|
|
}
|
|
}
|
|
}
|
|
|
|
rb->close(loghandler);
|
|
|
|
/* additional dummy ply to represent end of file without
|
|
*loosing the previous node's pointer
|
|
*/
|
|
if (first_ply != NULL){
|
|
temp_ply = (struct pgn_ply_node *)pl_malloc(sizeof size_ply);
|
|
temp_ply->player = neutral;
|
|
temp_ply->prev_node = curr_node;
|
|
curr_node->next_node = temp_ply;
|
|
}
|
|
selected_game->first_ply = first_ply;
|
|
rb->close(fhandler);
|
|
}
|
|
|
|
struct pgn_game_node* pgn_init_game(void){
|
|
struct pgn_game_node game_size, *game;
|
|
struct pgn_ply_node ply_size, *ply;
|
|
struct tm *current_time;
|
|
|
|
if (bufptr == NULL){
|
|
pl_malloc_init();
|
|
}
|
|
|
|
/* create an "end of game" dummy ply and assign defaults */
|
|
ply = (struct pgn_ply_node *)pl_malloc(sizeof ply_size);
|
|
ply->player = neutral;
|
|
ply->pgn_text[0] = '\0';
|
|
ply->prev_node = NULL;
|
|
ply->next_node = NULL;
|
|
|
|
/* create the game and assign defaults */
|
|
game = (struct pgn_game_node *)pl_malloc(sizeof game_size);
|
|
game->game_number = 0;
|
|
rb->strcpy(game->white_player,"Player");
|
|
rb->strcpy(game->black_player,"GnuChess");
|
|
current_time = rb->get_time();
|
|
if (current_time->tm_year < 100){
|
|
rb->snprintf(game->game_date,11,"????.??.??");
|
|
} else {
|
|
rb->snprintf(game->game_date,11,"%4u.%2u.%2u",current_time->tm_year + 1900,
|
|
current_time->tm_mon + 1, current_time->tm_mday);
|
|
}
|
|
rb->strcpy(game->result,"*");
|
|
game->pgn_line = 0;
|
|
game->first_ply = ply;
|
|
game->next_node = NULL;
|
|
|
|
return game;
|
|
}
|
|
|
|
void pgn_append_ply(struct pgn_game_node* game,
|
|
unsigned short ply_player, char *move_buffer, bool is_mate){
|
|
struct pgn_ply_node ply_size, *ply, *temp;
|
|
|
|
ply = (struct pgn_ply_node *)pl_malloc(sizeof ply_size);
|
|
ply->player = ply_player;
|
|
ply->column_from = move_buffer[0] - 'a';
|
|
ply->row_from = move_buffer[1] - '1';
|
|
ply->column_to = move_buffer[2] - 'a';
|
|
ply->row_to = move_buffer[3] - '1';
|
|
ply->castle = false;
|
|
ply->promotion = false;
|
|
ply->enpassant = false;
|
|
ply->promotion_piece = no_piece;
|
|
ply->taken_piece = no_piece;
|
|
ply->draw = false;
|
|
ply->checkmate = is_mate;
|
|
|
|
/* move the pointer to the "end of game" marker ply */
|
|
for (temp=game->first_ply;temp->next_node!=NULL;temp=temp->next_node);
|
|
|
|
/* arrange the pointers to insert the ply before the marker */
|
|
ply->next_node = temp;
|
|
ply->prev_node = temp->prev_node;
|
|
if (temp->prev_node == NULL){
|
|
game->first_ply = ply;
|
|
} else {
|
|
temp->prev_node->next_node = ply;
|
|
}
|
|
temp->prev_node = ply;
|
|
}
|
|
|
|
void pgn_set_result(struct pgn_game_node* game,
|
|
bool is_mate){
|
|
|
|
struct pgn_ply_node *ply;
|
|
for(ply=game->first_ply;ply->next_node != NULL;ply=ply->next_node);
|
|
if (is_mate){
|
|
ply->prev_node->checkmate = true;
|
|
} else {
|
|
ply->prev_node->draw = true;
|
|
}
|
|
}
|
|
|
|
void pgn_store_game(struct pgn_game_node* game){
|
|
int fhandler;
|
|
struct pgn_ply_node *ply;
|
|
unsigned ply_count;
|
|
size_t line_length=0;
|
|
char buffer[10];
|
|
|
|
GNUChess_Initialize();
|
|
|
|
ply_count=0;
|
|
ply=game->first_ply;
|
|
while (ply->next_node!=NULL){
|
|
coords_to_pgn(ply);
|
|
if (ply->checkmate){
|
|
if (ply->player == white){
|
|
rb->strcpy(game->result,"1-0");
|
|
} else {
|
|
rb->strcpy(game->result,"0-1");
|
|
}
|
|
}
|
|
if (ply->draw){
|
|
rb->strcpy(game->result,"1/2-1/2");
|
|
}
|
|
ply=ply->next_node;
|
|
ply_count++;
|
|
}
|
|
|
|
fhandler = rb->open(PGN_FILE, O_WRONLY|O_CREAT|O_APPEND);
|
|
|
|
|
|
/* the first 7 tags are mandatory according to the PGN specification so we
|
|
* have to include them even if the values don't make much sense
|
|
*/
|
|
rb->fdprintf(fhandler,"[Event \"Casual Game\"]\n");
|
|
rb->fdprintf(fhandler,"[Site \"?\"]\n");
|
|
rb->fdprintf(fhandler,"[Date \"%s\"]\n",game->game_date);
|
|
rb->fdprintf(fhandler,"[Round \"?\"]\n");
|
|
rb->fdprintf(fhandler,"[White \"%s\"]\n",game->white_player);
|
|
rb->fdprintf(fhandler,"[Black \"%s\"]\n",game->black_player);
|
|
rb->fdprintf(fhandler,"[Result \"%s\"]\n",game->result);
|
|
rb->fdprintf(fhandler,"[PlyCount \"%u\"]\n",ply_count);
|
|
|
|
/* leave a blank line between the tag section and the game section */
|
|
rb->fdprintf(fhandler,"\n");
|
|
|
|
/* write the plies in several lines of up to 80 characters */
|
|
for (ply_count=0, ply=game->first_ply;ply->next_node!=NULL;
|
|
ply=ply->next_node,ply_count++){
|
|
/* write the move number */
|
|
if (ply->player == white){
|
|
rb->snprintf(buffer,10,"%u.",(ply_count/2)+1);
|
|
write_pgn_token(fhandler, buffer, &line_length);
|
|
}
|
|
/* write the actual move */
|
|
write_pgn_token(fhandler,ply->pgn_text,&line_length);
|
|
/* write the result of the game at the end */
|
|
if (ply->checkmate){
|
|
if (ply->player == white){
|
|
write_pgn_token(fhandler,"1-0",&line_length);
|
|
} else {
|
|
write_pgn_token(fhandler,"0-1",&line_length);
|
|
}
|
|
break;
|
|
} else if (ply->draw){
|
|
write_pgn_token(fhandler,"1/2-1/2",&line_length);
|
|
break;
|
|
} else if (ply->next_node->player == neutral) {
|
|
/* unknown end of the game */
|
|
write_pgn_token(fhandler,"*",&line_length);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* leave a blank line between the tag section and the game section */
|
|
rb->fdprintf(fhandler,"\n\n");
|
|
|
|
rb->close(fhandler);
|
|
}
|